Optical transmission system

Abstract

The present invention aims to improve convenience and comfort when installing and using an optical transmission device for transmitting video signals. The present invention provides an adapter and a base station for an optical transmission system that optically transmits analog video signals or digital video signals between the adapter-base station pair, the adapter and the base station comprising a lens controller and an intercom function, the optical transmission system operating connected devices.

What is claimed is: 
     
         1 . An optical transmission system, comprising:
 an optical base station; and   an optical camera adapter,   wherein   the system optically transmits an analog video signal, a digital video signal, a control signal, an audio signal, or combination thereof between the optical base station and the optical camera adapter;   the optical camera adapter is connectable to a connector for a broadcasting lens;   the optical base station is connectable to a lens controller; and   the lens controller is capable of controlling at least one of an iris signal, a focus signal, a zoom signal, of the broadcasting lens connected to the optical camera adapter, or a return video signal;   the system further comprising:   a control section that is capable of controlling at least one of the iris signal, the focus signal, the zoom signal, of the lens connected to the optical camera adapter, or the return video signal,   wherein   the optical camera adapter is connected via a cable to a lens connector for a connected video production camera;   an iris signal of the camera is controlled using a manual iris signal generated from the lens controller, the optical base station, or the optical camera adapter; and   lens control of one or more of cameras is performed by switching between an auto iris signal of the camera and a manual iris signal from the lens controller, the optical base station, or the optical camera adapter using a changeover switch that the optical camera adapter and the optical base station include or using the lens controller connected to the optical base station.   
     
     
         2 . The optical transmission system of  claim 1 , wherein
 at least one of the optical camera adapter or the optical base station includes a control section that is capable of controlling at least one of the iris signal, the focus signal, the zoom signal, of the lens connected to the optical camera adapter, or the return video signal.   
     
     
         3 . The optical transmission system of  claim 1 , wherein
 a video signal is outputted to at least one of a viewfinder output connector or a viewfinder output terminal of the optical camera adapter, wherein   the video signal is a camera signal inputted into the optical camera adapter, and is switched into the return video signal inputted into the optical base station or the optical camera adapter while a return video signal display switch of the lens is pressed.   
     
     
         4 . The optical transmission system of  claim 1 , wherein
 a video signal is outputted to at least one of a viewfinder output connector or a viewfinder output terminal of the optical camera adapter, wherein   the video signal is a camera signal inputted into the optical camera adapter, and is switched into the return video signal inputted into the optical base station or the optical camera adapter while a zoom remote-control push button switch connected to the optical camera adapter is pressed.   
     
     
         5 . An optical transmission system of  claim 1 , further comprising:
 an optical base station; and   an optical camera adapter,   wherein   the system optically transmits an analog video signal, a digital video signal, a control signal, an audio signal, or combination thereof between the optical base station and the optical camera adapter;   the optical camera adapter is connectable to a connector for a broadcasting lens;   the optical base station is connectable to a lens controller; and   the lens controller is capable of controlling at least one of an iris signal, a focus signal, a zoom signal, of the broadcasting lens connected to the optical camera adapter, or a return video signal;   the system further comprising:   an output connector through which a return switching signal of the lens, a camera video signal, and a tally signal of the return video signal are outputted using a switching function of a viewfinder between an input 1 and an input 2.   
     
     
         6 . The optical transmission system of  claim 1 , wherein
 a signal of a connected camera is convertible into a LAN output signal inside the optical camera adapter and transmittable to the optical base station.   
     
     
         7 . An optical transmission system comprising:
 an optical base station; and   an optical camera adapter,   wherein   the system optically transmits an analog video signal, a digital video signal, a control signal, an audio signal, or combination thereof between the optical base station and the optical camera adapter;   the optical camera adapter is connectable to a connector for a broadcasting lens;   the optical base station is connectable to a lens controller; and   the lens controller is capable of controlling at least one of an iris signal, a focus signal, a zoom signal, of the broadcasting lens connected to the optical camera adapter, or a return video signal; and   wherein   when using an optical spectrometer on each side of the optical camera adapter-optical base station pair, the optical spectrometer transmitting, inside the optical camera adapter, a video signal from a connected camera and each signal connected to the base station through a single optical cable, which is analogous to CWDM or DWDM transmitting multiple frequencies through a single optical cable, at least one of a control signal from the camera, a tally signal, a camera signal, or a camera control signal are convertible into a LAN output signal, and a video signal converted into a LAN signal and a conventional signal are able to be outputted separately or simultaneously, the video signal being outputted from the optical camera adapter or the optical base station, the conventional signal being outputted from the optical base station.   
     
     
         8 . The optical transmission system of  claim 1 , wherein
 an intercom control section is provided on back of the adapter during operation, which is analogous to a studio camera for broadcasting.   
     
     
         9 . The optical transmission system of  claim 1 , wherein
 a camera, a viewfinder, and a monitor that are connected to the optical camera adapter are able to be powered on and off from a lens remote and a camera control unit that are connected to the optical base station.   
     
     
         10 . The optical transmission system of  claim 1 , wherein
 on a control panel installed to back of the optical camera adapter, a remote controller is attached, the remote controller being attachable to the back using an attachment fitting or to a battery mount and having a function of at least one of an intercom volume adjuster or an iris controller.   
     
     
         11 . The optical transmission system of  claim 1 , wherein
 on a control panel installed to back of the optical camera adapter, a remote controller, with an iris display function, of a remote-control section is attached, the remote-control section being attachable to the back using an attachment fitting or to a battery mount and having a function of at least one of an intercom volume adjuster or an iris controller.   
     
     
         12 . The optical transmission system of  claim 1 , wherein
 on a control panel installed to back of the optical camera adapter, when a remote-control section is attached or detached, a remote controller that is also connectable to a connector of the base station is attached, the remote-control section being attachable to the back using an attachment fitting or to a battery mount and having a function of at least one of an intercom volume adjuster or an iris controller.